• to





This is a "machine-selection optional" part.Please choose a vehicle to see products specific to your machine, select a product below.

Choose a vehicle:

User Tip: If you're unsure of your vehicle type, you may skip the machine type selection box.

» Log in to use your Rider Profile Machines

STI ATV Tires from Rocky Mountain ATV/MC

STI is dedicated to the design, development and manufacturing of high quality ATV and UTV tires. Their engineers are committed to developing tires that meet the highest standards and provide the greatest value to their customers. Rocky Mountain ATV/MC has many kinds of STI ATV tires, made for sand, snow, mud, tracks and trails. You can be sure any tire that Rocky Mountain ATV/MC sells is durable and built to last, but we also strive to provide incredible prices as well.

If you need two STI ATV tires, make sure you check out our ATV Tire and Wheel Builder Package which can save you up to 56%. Simply choose two tires and wheels using our filters search that will find the tires to fit your machine perfectly. Then our trained professionals will mount them for free and get them ready to be shipped along with the free valve stems you receive with your package. In addition, you also receive free ground shipping with any ATV Tire and Wheel Package.

Latest STI ATV Tires Reviews – You could win up to $500 for reviewing products!

  • STI Tech 4 XC Tire

    STI Tech 4 XC Tire

    Greg in MO

    Just got these tires put on my Yamaha warrior 350 the other day but I’m loving them so far.

    Read All Reviews
  • STI Roctane XD Radial Tire

    STI Roctane XD Radial Tire

    Ricky in ID

    great tire

    great tire for the money but need to stay off pavement with them. They eat off fast if you ride any pavement to get where you are going

    Read All Reviews
  • STI Out & Back Max Tire

    STI Out & Back Max Tire

    Jim in MN


    Love the looks and the traction I get. I don't use "trails" as most of my riding is in the bush.

    Read All Reviews
  • STI Sand Drifter Rear Sand Tire

    STI Sand Drifter Rear Sand Tire

    GERALD in CA

    Good tire, but not foe me.

    Very nice tire with good build quality. Bad part is my 2018 X3 Max Turbo R blows the tire away. Other thing is the tire does measure 30 inches as implied in the tire size. Should be okay for the 120 hp machines. These are going up for sale. My loss.

    Read All Reviews
  • STI Sand Drifter Front Sand Tire

    STI Sand Drifter Front Sand Tire

    Christopher in MN

    Sand drifter best for there money

    They where awsome i would recommend them. I used them at Glamis sand dunes in California. They work perfect for the money.

    Read All Reviews
  • STI Tech 4 MX Tire

    STI Tech 4 MX Tire

    Andrew in OK

    Limited use so far, but these seem like great tires...

    We bought some of these tires to go won some ITP wheels for my son's Yamaha Raptor 80. His old tires were worn and new 7" tires were not easy to find. The tires were a real improvement compared to our last ride on the old tires. I would have rated them higher, but we just got them, so it's hard to speak accurately about tread life.

    Read All Reviews
RM Cash ProgramParts Finder